Question

The angle between the forces 30N and 20N action a body of mass 10kg is 120°. Find the acceleration of the body​

Answer 1

≈2.646 [m/s²].

Explanation:

1) to calculate the resulting force, F (marked with red colour);

2) to calculate the requred acceleration, a=F/m.

All the details are in the attachment, the answer is marked with orange colour.